Eighteen Sound |
18NLW9400 |
18NLW9400-4 |
ALT189400WF04NA - 022184N940 |
Cone driver |
Sold by piece |
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Brand Eighteen Sound |
Model 18NLW9400 |
TLHP code 18NLW9400-4 |
Manufacturer code ALT189400WF04NA - 022184N940 |
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Product type Cone driver |
Sales packaging Sold by Piece |
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If you want to purchase more than the quantity in stock, have a look at the supply time below :
Indicative average supply lead time: 11 weeks
The 18NLW9400 is a 18" (460 mm) extended low frequency loudspeaker, designed for use as a low bass or subwoofer component, in vented or bandpass configuration. The loudspeaker design provides clean and undistorted LF reproduction at a very high SPL and enables the transducer to withstand high power levels without damage. For optimum results we recommend amplifiers able to deliver 2400 Watt program power.
The high grade neodymium magnet assembly is able to resist to the most demanding environmental operative conditions.
18NLW9400 features include a large displacement suspension system which, in conjunction with a fiberglass reinforced, straight ribbed cone and the Eighteen Sound proprietary Double Silicon Spider (DSS) technology, allows an ultra-linear piston action and provides full mechanical control across the entire working range.
The 100mm (4 in) copper round wire state-of-the-art voice coil, based on Interleaved Sandwich Voice coil (ISV) technology, provides high levels of thermal stability and durability. The ISV technology achieves a balanced linear motor unit exerting an exceptionally high force factor. This is realised through a high strength fiberglas former with half the coil wound half on the outside and half on the inside and bonded together using unique high-temperature resin adhesives.
18NLW9400 is able to perform properly under inclement weather conditions: the exclusive cone treatment improves pulp strength and gives water repellent properties to both sides of the cone. In addition, the special treatment applied to top and back plates of the magnetic structure is far more resistant to the corrosive effects of salts and oxidization.
98 dB SPL 1W / 1m average sensitivity
100 mm (4 in) Interleaved Sandwich Voice coil (ISV)
2400 Watt program power handling
High grade neodymium magnet assembly
Double Silicon Spider (DSS) for increased excursion control and linearity
Recommended for subwoofer usage in compact vented or bandpass enclosures
Weather protected cone and plates for outdoor usage
General |
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Product type | Cone driver |
Brand | Eighteen Sound |
Reference | 18NLW9400 |
Product code | ALT189400WF04NA - 022184N940 |
Informations |
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Nominal impedance | 4 ohm |
Dimensional category | 18 inch |
Frequency coverage type | Sub, Low |
Manufacturer sensitivity | 98 dB |
Calculated sensitivity | 97.82 dB |
Nominal power handling | 1200 W |
Max power handling | 2400 W |
Bandwidth | 30÷2500 Hz |
Fundamental parameters |
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Sd | 1225 cm² |
Mms | 185 gr |
Cms | 135 µm/N |
Le | 1.25 mH |
Re | 2.6 ohm |
BL | 20.5 T.m |
Small signal parameters |
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Fs | 32 Hz |
Qes | 0.23 |
Qms | 6.1 |
Qts | 0.22 |
Vas | 278 L |
Datas |
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Xmax | ±9.5 mm |
EBP | 139 Hz |
Zmin | 3.3 ohm |
Fs / Qts | 145 Hz |
Vas * Qts² | 13.46 L |
Calculated efficiency | 3.81 % |
Weight | ~8.7 kg |
Dimensions |
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Voice coil diameter | 4 inch |
Outside diameter | 462 mm |
Baffle cutout diameter | 416 mm |
Depth | 223 mm |
Front thickness | 21 mm |
Depth after front | 202 mm |
Shape & Materials |
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Front chape | Cylindrical |
Magnet type | Neodymium |
This system is only available for technical questions. For questions of prices, availability of products and deadline thank you to send your request by the contact page.
This product is under manufacturer's warranty. This warranty protect you for the manufacturing defaults. The warranty does not protect for abnormal use of the product.